1.\" Copyright (c) 2008 Isilon Inc http://www.isilon.com/ 2.\" Authors: Doug Rabson <dfr@rabson.org> 3.\" Developed with Red Inc: Alfred Perlstein <alfred@FreeBSD.org> 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.Dd April 10 2020 27.Dt GSSD 8 28.Os 29.Sh NAME 30.Nm gssd 31.Nd "Generic Security Services Daemon" 32.Sh SYNOPSIS 33.Nm 34.Op Fl d 35.Op Fl h 36.Op Fl v 37.Op Fl s Ar dir-list 38.Op Fl c Ar file-substring 39.Op Fl r Ar preferred-realm 40.Sh DESCRIPTION 41The 42.Nm 43program provides support for the kernel GSS-API implementation. 44.Pp 45The options are as follows: 46.Bl -tag -width indent 47.It Fl d 48Run in debug mode. 49In this mode, 50.Nm 51will not fork when it starts. 52.It Fl h 53Enable support for host-based initiator credentials. 54This permits a kerberized NFS mount to use a service principal in 55the default Kerberos 5 keytab file for access. 56Such access is enabled via the 57gssname 58option for the 59.Xr mount_nfs 8 60command. 61.It Fl v 62Run in verbose mode. 63In this mode, 64.Nm 65will log activity messages to syslog using LOG_INFO | LOG_DAEMON or to 66stderr, if the 67.Fl d 68option has also been specified. 69The minor status is logged as a decimal number, since it is actually a 70Kerberos return status, which is signed. 71.It Fl s Ar dir-list 72Look for an appropriate credential cache file in this list of directories. 73The list should be full pathnames from root, separated by ':' characters. 74Usually this list will simply be "/tmp". 75Without this option, 76.Nm 77assumes that the credential cache file is called /tmp/krb5cc_<uid>, 78where <uid> is the effective uid for the RPC caller. 79.It Fl c Ar file-substring 80Set a file-substring for the credential cache file names. 81Only files with this substring embedded in their names will be 82selected as candidates when 83.Fl s 84has been specified. 85If not specified, it defaults to "krb5cc_". 86.It Fl r Ar preferred-realm 87Use Kerberos credentials for this realm when searching for 88credentials in directories specified with 89.Fl s . 90If not specified, the default Kerberos realm will be used. 91.El 92.Sh FILES 93.Bl -tag -width ".Pa /etc/krb5.keytab" -compact 94.It Pa /etc/krb5.keytab 95Contains Kerberos service principals which may be used as credentials 96by kernel GSS-API services. 97.El 98.Sh EXIT STATUS 99.Ex -std 100.Sh SEE ALSO 101.Xr gssapi 3 , 102.Xr syslog 3 , 103.Xr mount_nfs 8 104.Sh HISTORY 105The 106.Nm 107manual page first appeared in 108.Fx 8.0 . 109.Sh AUTHORS 110This 111manual page was written by 112.An Doug Rabson Aq Mt dfr@FreeBSD.org . 113